388results about "Signal boxes station blocking" patented technology

A train control system includes a control module that determines a position of a train using a positioning system and consults a database to determine when the train is approaching a portion of track monitored by a track circuit. When the train is near a track circuit, but while the train is still far enough away from the track circuit such that the train can be stopped before reaching the portion of track monitored by the track circuit, the train transmits an interrogation message to a transceiver associated with the track circuit. When the track circuit receives the interrogation message, a test is initiated. The test results are transmitted back to the train. The train takes corrective action if the track circuit fails to respond or indicates a problem.

A train control system and method uses signal information from a next block to change a restrictive signal in a block currently occupied by the train to a less restrictive signal if it can be ascertained that the condition causing the more restrictive signal has changed. This may be accomplished by receiving signal information from the next block while still in the current block and, if the signal information from the next block is no more restrictive than the signal information in the current block, and the signal in the current block is of a type that can safely be modified, allowing the train to operate as if the signal information for the current block were less restrictive than the actual, previously received signal information for the current block.

A porous polymeric membrane formed from a blend of a polymeric membrane forming material, such as polyvinylidene fluoride or polysulfone and a polymeric reactivity modifying agent adapted to modify the surface active properties of the porous polymeric membrane. The reactivity modifying agent is preferably a linear polymeric anhydride, such as poly(alkyl vinyl ether/maleic anhydride). The surface activity modifications include modification of the hydrophilicity/hydrophobicity balance of the membrane, or hydrolysis followed by reaction with a polyamine to form a crosslinked polyamide layer. Such modified membranes have use as reverse osmosis membranes.

A method is provided for detecting broken rail, unintentionally misaligned turnouts, and track occupancy ahead of or behind a railway vehicle traveling on a railroad track. Shunts extend between the rails at intervals along the railroad track. Each shunt has electrical signal transmission characteristics differing from those of adjacent shunts. A test unit on the railway vehicle induces a test signal in a first rail to create a track circuit in which the test signal propagates along the first rail, through at least one of the shunts, returns to the railway vehicle along the second rail, and through the wheels and axle of the railway vehicle. The test signal has electrical properties selected to interact with at least one of the shunts. The received test signal on the second rail is analyzed to identify predetermined conditions concerning the status of the railroad track.

The invention claims a computer interlock system and method for controlling urban rail transit signals thereof, which relate to urban rail transit signal control field. The computer interlock system disclosed in the invention at least comprises an interlock control unit and an input and output unit, wherein the interlock control unit carries out a double two out of two interlock logical operation of according to state information of each signal device when receives an interlock operating command, and determines the state information of the signal device to be controlled by the interlock operating command according to the result of the interlock logical operation and outputs to the input and output unit; the input and output unit outputs driving information for controlling the signal device to reach the determined state to the signal device to be controlled by the interlock operating command. The example in the application can guarantee a subway system to operate safely and reliably; and the embodiment in the application is not only suitable for moving block, but also suitable for quasi moving block and fixed block, and is high in flexibility.

A method of forming an integrated circuit (IC) includes forming a first and second plurality of spacers on a substrate, wherein the substrate includes a silicon layer, and wherein the first plurality of spacers have a thickness that is different from a thickness of the second plurality of spacers; and etching the silicon layer in the substrate using the first and second plurality of spacers as a mask, wherein the etched silicon layer forms a first plurality and a second plurality of fin field effect transistor (FINFET) channel regions, and wherein the first plurality of FINFET channel regions each have a respective thickness that corresponds to the thickness of the first plurality of spacers, and wherein the second plurality of FINFET channel regions each have a respective thickness that corresponds to the thickness of the second plurality of spacers.

A double wire seal has a first grommet for sealing a conductor relative to a substrate having opposite sides and an opening therethrough for a conductor. The first grommet has axially opposite ends. A second grommet for sealing the conductor relative to a door panel having opposite ends and an opening therethrough for the conductor. The second grommet has axially opposite ends. The first grommet secures the conductor to the substrate. The second grommet secures the conductor to the door panel.

A wireless communication system includes: a filter; and a semiconductor chip including a signal processing integrated circuit having an amplifier, wherein a main surface of the semiconductor chip is provided with a plurality of electrode terminals along an edge portion thereof; wherein the amplifier has a transistor including a control electrode, a first electrode through which a signal is outputted, and a second electrode to which a voltage is applied; wherein the control electrode, the first electrode and the second electrode of the transistor are connected to the electrode terminals, respectively; and wherein none of wirings are arranged between the electrode terminals and placements of the control electrode, the first electrode and the second electrode, making space between the electrodes and the electrode terminals narrow.

A train control system for controlling trains traveling in a track network including tracks with signals associated therewith. The system includes an on-board track database, a positioning system and an on-board control system. The on-board control system receives position data and automatically brakes the train prior to encountering an upcoming signal based upon specified data points. The train is not automatically braked if certain conditions are met. A method for controlling a train traveling in a track network is also disclosed.

A message that contains train on-track information and reservation information of a train detection section and direction information and reservation information of a switch is circulated among a train detector, switch machine, signal device controller and a route indicating device. The train detector updates train on-track information of a train detection section contained in the signaling message, the switch machine updates switch direction information in the signaling message, and the route indicating device updates reservation information of the train detection section and the switch contained in the signaling message. Via the signaling message, the train detector can transmit the train detection result to the signal device controller and the route indicating device, the switch machine can transmit switch condition to the signal device controller, the route indicating device transmits route reservation to the switch machine and the signal device controller, and based on the transmitted train detection result, switch condition and route reservation condition, the signal device controller transmits travel permission or travel non-permission for the assigned route to a train.

The invention relates to automatic route selection technology for a railway vehicle. In a method and a system for controlling automatic route selection of the invention, a microelectronic module is adopted to replace the prior relay, the logical relation is completed by an MCU, and the logical design is simpler and more reliable; a wireless remote control mode is introduced to complete the opposing change of a railroad switch, so the work intensity of a driver is reduced; electromagnetic sensing technology is quoted to determine the direction and speed of a train; and a remote integrated monitoring function is increased to master the work states of equipment such as an electric point switch, a railroad switch, a wheel sensor and the like at any time. Therefore, the new functions improve the running safety of the train greatly, ensure the stability of the equipment, and really achieve automatic route selection of the train.

In the state that a train moves from a track circuit 3T toward a track circuit 5T, and a train detection signal TD1 is supplied from the boundary between the track circuits 3T and 5T to the track circuits 3T and 5T, and the train detection signal TD1 is received by the train, if the signal intensity is suddenly reduced greatly immediately after the axle of the train passes the boundary between the track circuits 3T and 5T, it can be decided that the train passes the boundary between the track circuits 3T and 5T. Therefore, if absolute position information of the track circuit 5T is preserved beforehand in the train, the movement distance calculated from pulse output of a speed generator is corrected (replaced) in the absolute position information of the track circuit 5T, and hereafter is updated by the pulse output, thus the position of the own train can be easily detected as a movement distance.

A scheduling system and method for moving plural objects through a multipath system described as a freight railway scheduling system. The scheduling system utilizes a resource scheduler to minimize resource exception while at the same time minimizing the global costs associated with the solution. The achievable movement plan can be used to assist in the control of, or to automatically control, the movement of trains through the system. Similar movement planners exist for moving trains in yards or terminals. Coordination is achieved and system efficiency improved by interfacing the line of road and yard planners.